SUN2000-(600W-P, 450W-P2) Smart PV Optimizer Quick Guide Issue: 04 Part Number: 31500GLF Date: 2022-09-20 HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
1 Product Overview The Smart PV Optimizer is a DC-DC converter installed on the rear of PV modules in a PV system. It manages the maximum power point (MPP) of each PV module to improve the energy yield of the PV system, and performs functions such as module-level shutdown and module-level management. SUN2000-600W-P (Short Input Cable)/SUN2000-450W-P2 The length of the input power cable delivered with the optimizer is 150 mm.
2 Installing the Device 2.1 Installation Requirements Clearance 2. Improper operations during the installation and running of optimizers may cause fire. Do not store flammable or explosive materials in the installation area. 1. Do not install optimizers in positions that may be submerged in water. Water 3. Do not cut the cables delivered with the optimizers. Otherwise, the warranty will be voided. 4. Avoid direct sunlight.
5. If optimizers and PV modules are installed close to the rooftop (for example, color steel tile rooftop), it is recommended that the distance between PV modules be greater than or equal to 200 mm, and that the ventilation area be greater than or equal to 100 mm high without obstacles. Ensure that the ambient temperature does not exceed the maximum ambient temperature allowed by the optimizer (–40℃ to +85℃).
2. Install the optimizer based on the selected installation mode. Extruded aluminum profile Installed on an Extruded Aluminum Profile – T-shaped Bolt Flange nut M8x20 T-shaped bolt The optimizer is mounted to an aluminum profile on the front or rear side with Tshaped bolt and nut. The T-shaped bolt and nut need to be purchased separately from Huawei. The bolt dimensions are as follows.
3 Installing the Optimizer Cables Ensure that the input (IN) and output (OUT) cables of the optimizer are correctly connected. If they are reversely connected, the device may be damaged. 1. Connect the optimizer input (IN) cable to the PV module connection box. 2. Connect the positive probe of the multimeter to the positive output terminal of the optimizer and the negative probe to the negative output terminal. Check the output voltage and resistance of a single optimizer.
Common Exception Scenarios The probes are reversely connected. The measured value R2 is less than the resistance measured when the probes are correctly connected. The sunlight is weak: 1.1 kΩ < R1 The optimizer input is not connected: 1.1 kΩ < R1 The optimizer output is connected to the PV module output: 1.1 kΩ < R1 3. Check that the optimizer input is properly connected, and connect the output power cables to the optimizer. Measure the PV string resistance when the sunlight is sufficient.
4. Connect cables between the PV string and the solar inverter. Solar inverter To minimize electromagnetic interference, ensure that the distance between the positive and negative cables of an optimizer is minimized. 4 Power-On Commissioning 1. The physical layout of the optimizers must be provided so that you can easily locate faulty optimizers based on the physical layout diagram. 2. The physical layout of the optimizers must be provided to use the optimizer disconnection detection function.
5 Troubleshooting 1. Open the FusionSolar app, log in to intl.fusionsolar.huawei.com using the installer account, choose Me > Device Commissioning, and connect to the WLAN hotspot of the solar inverter. 2. Select installer and enter the login password. Click Log In. The device commissioning screen is displayed. 3. Choose Device Monitoring, select the PV string and check the optimizer status. Status Green Description The optimizer is running properly. Gray The optimizer is offline.
6 Replacing an Optimizer 1. Power off the solar inverter and remove the faulty optimizer. 3. Power on the solar inverter. On the Device Commissioning screen, choose Maintenance > Subdevice management, and tap Auto search to add the new optimizer. 2. Install a new optimizer and correctly connect its cables. 4. On the Device Commissioning screen, choose Maintenance > Optimizer layout, select the corresponding PV module, and bind the new optimizer. Click Submit.
8 The optimizer uses Staubli MC4 DC connectors. Ensure that the DC connectors to be connected are of this model. If the DC connectors to be connected are not of the Staubli MC4 model, the connector compatibility report and third-party lab (TUV, VED, or Bureau Veritas) report from the DC connector manufacturer must be available. Using incompatible DC connectors may result in serious consequences. The resulting device damage is beyond the warranty scope.
Huawei Digital Power Technologies Co., Ltd. Huawei Digital Power Antuoshan Headquarters, Futian Shenzhen 518043, People's Republic of China solar.huawei.
